Mitsubishi Electric FR-A820-00046 Instruction Manual page 138

Wiring for use of the CC-Link IE Field Network (FR-A800-GF)
Network configuration
Star topology
Line topology,
ring topology
To keep outputting a data link error (inverter communication error), set Pr. 500 „Communication
error execution waiting time" or Pr. 502 „Stop mode selection at communication error".
NOTES When wiring cables to the inverter's RS-485 terminals, take caution not to let the cables touch the
CC-Link IE Field Network communication circuit board or of the inverter's circuit board. Otherwise,
electromagnetic noises may cause malfunctions.
After wiring, wire offcuts must not be left in the inverter. Wire offcuts can cause an alarm, failure or
malfunction.
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Operation
Powering ON/OFF a slave station or the switching hub
Connecting/disconnecting an Ethernet cable connected to the switching hub
Disconnecting an Ethernet cable from a slave station and connecting it to another
slave station or to the switching hub
Disconnecting ten stations or more, or disconnecting half the number of slave
stations in the system or more
Changing the network topology when adding a slave station
Simultaneously powering ON/OFF multiple stations
Simultaneously connecting/disconnecting Ethernet cables to/from multiple
stations (When a data link faulty station returns, a data link error will occur in all the
stations.)
Disconnecting ten stations or more, or disconnecting half the number of slave
stations in the system or more
Changing the network topology when adding a slave station
At plug in/unplug or power ON/OFF
Installation and wiring
A momentary error
in all stations
I003076E